Philosophy Lexicon of Arguments

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Truth-functions: truth-functions map truth-values onto other truth-values. In two-valued logic, the two available truth values are "true" or "false" (t/f). The disjunction (A or B) now maps (t or t), (t or f) and (f or t) onto t, and (f or f) onto f. Non-truth-functional semantics differ from truth-functional semantics in that they also take other meanings of the logical links ("and", "or", "if then") into account, for example, expressions such as "nevertheless," "though," "still", whose propositional content corresponds to the "and", but which bring a certain additional expressive force into play. See also truth-functional semantics, truth-conditional semantics, semantics, propositional content.

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Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments.

 
Author Item Excerpt Meta data

 
Books on Amazon
V 137
Truth function/Lewis: should represent the belief systems of people. - They do not have to be realistic. Propositions: should be truth functions. - The indicative conditional must have a fixed interpretation of different beliefs - this makes it a probability conditional.
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V 140f
Non- truth-functional/conditional/Lewis: instead: deductive roles of normal connections: instead of equivalence: Inter- deducibility. - Instead of incompatibility: deductive inconsistency instead of necessity: deducibility. - ((s) Deduction does not refer to truth, but to internal correctness.) ((s) > provability).


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Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution.

LW I
D. Lewis
Die Identität von Körper und Geist Frankfurt 1989

LW II
D. Lewis
Konventionen Berlin 1975

LW IV
D. Lewis
Philosophical Papers Bd I New York Oxford 1983

LW V
D. Lewis
Philosophical Papers Bd II New York Oxford 1986

LwCl I
Cl. I. Lewis
Mind and the World Order: Outline of a Theory of Knowledge (Dover Books on Western Philosophy) 1991


> Counter arguments against Lewis



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Ed. Martin Schulz, access date 2017-08-24